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Photo#274603
Bombardier Beetle - Brachinus fulminatus - female
Copyright © 2009 tom murray

Bombardier Beetle - Brachinus fulminatus - Female
Groton, Middlesex County, Massachusetts, USA
May 10, 2009
Size: 8.7mm
Contributed by tom murray on 11 May, 2009 - 9:38pm
Last updated 8 January, 2010 - 9:45am

Moved
Moved from Bombardier Beetle.
… tom murray, 10 June, 2009 - 5:22pm

Brachinus fulminatus - female
based on my microscopic examination of this specimen including dissection and study of female gonostyle. Thanks Tom.
… Peter W. Messer, 10 June, 2009 - 1:33pm

 
why female
Why female? any dissection proof?
… hyao, 10 September, 2009 - 2:59pm

 
Female
because I had the advantage of actually seeing the tiny dissected female genitalia as part of my examination of this specimen. But the image tells you it's a female based on the rather narrow protarsi (= distal segments of foreleg) which are much more dilated in males.
… Peter W. Messer, 10 September, 2009 - 4:55pm

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